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Cheap flights from St. Louis to Baltimore from $60

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Baltimore departing on 2/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from St. Louis to Washington, D.C.

Cheap round-trip flights

These are some of the best round-trip flight deals from St. Louis to Washington, D.C. that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from St. Louis to Washington, D.C..

Cheap last minute flights

Planning a quick getaway from St. Louis to Washington, D.C.? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Washington, D.C., so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from St. Louis to Washington, D.C.

Find recent round-trip train or bus tickets from St. Louis to Washington, D.C..

All round-trip flight deals to Washington, D.C.

The cheapest plane tickets to Washington, D.C. found on KAYAK recently.
5:05 pm - 7:52 amSTL-BWI
13h 47m1 stop
9:20 pm - 11:27 pmBWI-STL
27h 07m1 stop
$118Frontier
Find Deal
Sat, Jan 11 - Mon, Jan 13
5:05 pm - 9:10 amSTL-BWI
15h 05m1 stop
9:15 am - 11:27 pmBWI-STL
15h 12m1 stop
$120Frontier
Find Deal
Tue, Jan 7 - Thu, Jan 9
12:52 pm - 7:42 pmSTL-BWI
5h 50m1 stop
10:18 am - 3:35 pmBWI-STL
6h 17m1 stop
$198Delta
Find Deal
Fri, Jan 24 - Sun, Jan 26
7:20 am - 12:41 pmSTL-BWI
4h 21m1 stop
7:30 am - 11:17 amBWI-STL
4h 47m1 stop
$241American Airlines
Find Deal
Sun, Jan 19 - Sat, Jan 25
6:25 pm - 12:18 amSTL-BWI
4h 53m1 stop
7:34 am - 11:21 amBWI-STL
4h 47m1 stop
$249American Airlines
Find Deal
Sun, Mar 2 - Wed, Mar 5
6:10 am - 9:10 amSTL-BWI
2h 00mnonstop
7:35 am - 9:10 amBWI-STL
2h 35mnonstop
$272Southwest
Find Deal
Sun, Mar 2 - Wed, Mar 5
3:35 pm - 6:35 pmSTL-BWI
2h 00mnonstop
6:15 pm - 7:40 pmBWI-STL
2h 25mnonstop
$278Southwest
Find Deal
Wed, Jan 22 - Wed, Jan 29
5:50 pm - 11:19 pmSTL-BWI
4h 29m1 stop
7:15 am - 11:47 amBWI-STL
5h 32m1 stop
$437Delta
Find Deal
Mon, Jan 6 - Fri, Jan 10
3:35 pm - 9:22 pmSTL-BWI
4h 47m1 stop
6:24 am - 12:12 pmBWI-STL
6h 48m1 stop
$452United Airlines
Find Deal
Fri, Mar 7 - Sun, Mar 16
1:02 pm - 8:48 pmSTL-BWI
6h 46m1 stop
10:05 am - 3:38 pmBWI-STL
6h 33m1 stop
$467United Airlines
Find Deal
Tue, Jan 7 - Sat, Jan 11
5:05 pm - 7:51 amSTL-BWI
13h 46m1 stop
$60Frontier
Find Deal
Sat, Feb 8
5:05 pm - 8:06 amSTL-BWI
14h 01m1 stop
$61Frontier
Find Deal
Wed, Jan 22
9:05 pm - 12:05 amSTL-BWI
2h 00mnonstop
$98Southwest
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Thu, Feb 13
12:52 pm - 7:42 pmSTL-BWI
5h 50m1 stop
$99Delta
Find Deal
Thu, Jan 23
6:30 am - 11:46 amSTL-BWI
4h 16m1 stop
$107Delta
Find Deal
Sun, Jan 26
10:30 am - 1:25 pmSTL-BWI
1h 55mnonstop
$109Southwest
Find Deal
Tue, Feb 18
3:35 pm - 9:22 pmSTL-BWI
4h 47m1 stop
$202United Airlines
Find Deal
Fri, Mar 14
10:03 am - 4:41 pmSTL-BWI
5h 38m1 stop
$226United Airlines
Find Deal
Thu, Mar 20
5:55 am - 1:19 pmSTL-BWI
6h 24m2 stops
$408American Airlines
Find Deal
Wed, Mar 26
5:58 pm - 12:31 amSTL-BWI
5h 33m1 stop
$410American Airlines
Find Deal
Sun, Dec 29
3:53 pm - 7:18 amSTL-BWI
14h 25m1 stop
9:31 pm - 6:43 amBWI-STL
10h 12m1 stop
$345Frontier
Find Deal
Wed, Dec 25 - Sun, Dec 29
10:09 pm - 1:26 pmSTL-BWI
14h 17m1 stop
9:52 am - 11:40 pmBWI-STL
14h 48m1 stop
$480Frontier
Find Deal
Thu, Dec 26 - Mon, Dec 30
10:09 pm - 1:26 pmSTL-BWI
14h 17m1 stop
9:52 am - 11:40 pmBWI-STL
14h 48m1 stop
$533Frontier
Find Deal
Thu, Dec 26 - Mon, Dec 30
5:00 pm - 10:00 pmSTL-BWI
4h 00m1 stop
6:55 pm - 11:10 pmBWI-STL
5h 15m1 stop
$646Southwest
Find Deal
Sun, Dec 29 - Mon, Dec 30
5:00 pm - 10:00 pmSTL-BWI
4h 00m1 stop
6:25 am - 7:55 amBWI-STL
2h 30mnonstop
$647Southwest
Find Deal
Sun, Dec 29 - Mon, Dec 30
4:27 pm - 9:47 amSTL-BWI
16h 20m1 stop
12:20 pm - 12:10 pmBWI-STL
24h 50m3 stops
Sun, Dec 29 - Mon, Dec 30
4:27 pm - 9:47 amSTL-BWI
16h 20m1 stop
8:16 pm - 3:21 pmBWI-STL
20h 05m2 stops
Sun, Dec 29 - Mon, Dec 30
12:55 pm - 8:07 pmSTL-BWI
6h 12m1 stop
6:05 am - 9:33 amBWI-STL
4h 28m1 stop
$815Delta
Find Deal
Fri, Dec 27 - Mon, Dec 30
6:29 am - 11:44 amSTL-BWI
4h 15m1 stop
6:00 am - 12:09 pmBWI-STL
7h 09m1 stop
$900Delta
Find Deal
Wed, Dec 25 - Sat, Dec 28
11:42 am - 7:36 pmSTL-BWI
6h 54m2 stops
7:30 am - 11:12 amBWI-STL
4h 42m1 stop
$1,096American Airlines
Find Deal
Fri, Dec 27 - Sun, Dec 29
6:10 am - 9:10 amSTL-BWI
2h 00mnonstop
7:35 am - 9:10 amBWI-STL
2h 35mnonstop
$272Southwest
Find Deal
Sun, Mar 2 - Wed, Mar 5
3:35 pm - 6:35 pmSTL-BWI
2h 00mnonstop
6:15 pm - 7:40 pmBWI-STL
2h 25mnonstop
$278Southwest
Find Deal
Wed, Jan 22 - Wed, Jan 29
8:05 pm - 11:05 pmSTL-BWI
2h 00mnonstop
6:30 am - 8:05 amBWI-STL
2h 35mnonstop
$300Southwest
Find Deal
Sun, Feb 2 - Thu, Feb 6
2:50 pm - 5:45 pmSTL-BWI
1h 55mnonstop
7:35 am - 9:10 amBWI-STL
2h 35mnonstop
$303Southwest
Find Deal
Sat, Jan 18 - Fri, Jan 24
6:50 am - 9:50 amSTL-BWI
2h 00mnonstop
6:30 am - 8:05 amBWI-STL
2h 35mnonstop
$316Southwest
Find Deal
Fri, Jan 24 - Sun, Jan 26
3:35 pm - 6:35 pmSTL-BWI
2h 00mnonstop
6:30 am - 8:05 amBWI-STL
2h 35mnonstop
$317Southwest
Find Deal
Thu, Jan 23 - Sun, Jan 26
8:05 pm - 11:05 pmSTL-BWI
2h 00mnonstop
7:35 am - 9:10 amBWI-STL
2h 35mnonstop
$318Southwest
Find Deal
Mon, Jan 20 - Tue, Jan 21
8:05 pm - 11:05 pmSTL-BWI
2h 00mnonstop
7:35 am - 9:10 amBWI-STL
2h 35mnonstop
$333Southwest
Find Deal
Mon, Jan 20 - Mon, Jan 27
2:50 pm - 5:45 pmSTL-BWI
1h 55mnonstop
7:35 am - 9:10 amBWI-STL
2h 35mnonstop
$342Southwest
Find Deal
Sat, Jan 18 - Tue, Jan 21
3:35 pm - 6:35 pmSTL-BWI
2h 00mnonstop
6:15 pm - 7:40 pmBWI-STL
2h 25mnonstop
$359Southwest
Find Deal
Mon, Jan 13 - Tue, Jan 14

Frontier flights from St. Louis to Baltimore

Our best Frontier deals on St. Louis to Baltimore flight tickets
Frontier
Jan 11
STL5:05 pmLambert-St Louis
13h 47m
1 stop
BWI7:52 amBaltimore/Washington
Jan 13
BWI9:20 pmBaltimore/Washington
27h 07m
1 stop
STL11:27 pmLambert-St Louis
Frontier
Jan 7
STL5:05 pmLambert-St Louis
15h 05m
1 stop
BWI9:10 amBaltimore/Washington
Jan 9
BWI9:15 amBaltimore/Washington
15h 12m
1 stop
STL11:27 pmLambert-St Louis
Frontier
Jan 6
STL5:45 pmLambert-St Louis
14h 25m
1 stop
BWI9:10 amBaltimore/Washington
Jan 10
BWI9:20 pmBaltimore/Washington
27h 07m
1 stop
STL11:27 pmLambert-St Louis

Southwest flights from St. Louis to Baltimore

Our best Southwest deals on St. Louis to Baltimore flight tickets
Southwest
Mar 2
STL6:10 amLambert-St Louis
2h 00m
BWI9:10 amBaltimore/Washington
Mar 5
BWI7:35 amBaltimore/Washington
2h 35m
STL9:10 amLambert-St Louis
Southwest
Jan 22
STL3:35 pmLambert-St Louis
2h 00m
BWI6:35 pmBaltimore/Washington
Jan 29
BWI6:15 pmBaltimore/Washington
2h 25m
STL7:40 pmLambert-St Louis
Southwest
Mar 2
STL6:00 amLambert-St Louis
5h 55m
1 stop
BWI12:55 pmBaltimore/Washington
Mar 5
BWI7:35 amBaltimore/Washington
2h 35m
STL9:10 amLambert-St Louis

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from St. Louis to Baltimore

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Baltimore?

If you’re not able to fly to Baltimore in September, then August is your next best option. Flight prices from St. Louis to Baltimore during August average around $309.

What is the cheapest day to depart on your flight to Baltimore?

The cheapest day to depart from St. Louis to Baltimore is on a Tuesday. Travelers who choose to depart for Baltimore on a Tuesday will often find tickets for as low as $328. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $420. These prices are subject to change though, so be sure to set up a Price Alert for flights to Baltimore.

What is the cheapest time of day to depart on your flight to Baltimore?

Flying to Baltimore from St. Louis in the evening is the least expensive time of day to depart. momondo users have found prices as low as $308 when looking at flights departing in the evening. Flights in the morning are often more expensive with an average ticket price of $378.

What is the cheapest Lambert-St Louis to Baltimore/Washington flight route?

Fly from Lambert-St Louis to Baltimore/Washington for the best Lambert-St Louis - Baltimore/Washington flight prices

How far in advance should I book a flight to Baltimore?

The best time to book a flight to Baltimore from St. Louis is 32 days out, which is when prices tend to be around $357. Don’t hesitate to check prices now though because momondo users recently found tickets for as low as $97.

What cabin class options are available on Lambert-St Louis to Baltimore/Washington flights?

There are 1 cabin classes available to choose from on Lambert-St Louis to Baltimore/Washington flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on St. Louis to Baltimore flights?

You could potentially save up to 38% on your flight if you consider stops on a St. Louis to Baltimore flight.

How have St. Louis to Baltimore flight prices changed over time?

As of December 2024, prices for St. Louis to Baltimore flights are approximately 24% more expensive when compared to flights at the same time last year.

When to book flights from St. Louis to Baltimore

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Baltimore according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Baltimore (STL to BWI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Baltimore

Best Price Found

$60

Fastest flight time

1h 55m

Direct flights

Every day

Airports in Baltimore

1 airport
The best one-way flight to Baltimore from St. Louis in the past 72 hours is $60. The best round-trip flight deal from St. Louis to Baltimore found on momondo in the last 72 hours is $118.
The fastest flight from St. Louis to Baltimore takes 1h 55m
Direct flights go from St. Louis to Baltimore every day.
There is 1 airport near Baltimore: Baltimore/Washington (BWI)

  • How far is Lambert-St Louis to Baltimore/Washington by plane?

    The straight-line distance from Lambert-St Louis to Baltimore/Washington is 730.2 mi. By plane, this route typically takes 1h 55m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Baltimore/Washington Airport?

    Prices for flights from Lambert-St Louis Airport to Baltimore/Washington Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Baltimore/Washington Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Baltimore/Washington Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Baltimore/Washington Airport.

  • What documentation or ID do you need to fly to Baltimore/Washington Airport?

    The travel and health documents required for your trip to Baltimore/Washington Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Baltimore/Washington Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from St. Louis to Baltimore?

  • What is the most popular airline from St. Louis to Baltimore?


Best airlines flying from St. Louis to Baltimore

Compare and see reviews for airlines that fly from St. Louis to Baltimore with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $98Free CancellationRating
6.1
3,468 reviews
Search Frontier flights
DeltaPriceFrom $207Free CancellationRating
8.0
8,580 reviews
Search Delta flights
American AirlinesPriceFrom $211Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $240Free CancellationRating
8.1
4,765 reviews
Search Southwest flights
United AirlinesPriceFrom $314Free CancellationRating
7.4
9,009 reviews
Search United Airlines flights
  • Southwest Flights From St. Louis to Baltimore

    Southwest flies from St. Louis to Baltimore around 25 times per week, with 4,765 momondo users rating the airline 8.1/10. The cheapest Southwest deal from St. Louis to Baltimore in the last 72 hours was $240 (round-trip), much lower than the average airfare cost of $385 for Southwest flights on this route.


Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Baltimore?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Baltimore. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from St. Louis to Baltimore with flexible booking policies on momondo?

All flight searches from St. Louis to Baltimore on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from St. Louis to Baltimore?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Baltimore from St. Louis.

I’m not ready to book a flight from St. Louis to Baltimore right now. Can momondo alert me if prices change?

If you are not ready to book a flight from St. Louis to Baltimore now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Baltimore and let you know when they change.


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